I'm always thinking about how programming should be introduced to children and how to reach real programming languages with them. Here is what I've figured out so far. Feel free to contribute by comments or through github.

I sing in a jazz choir and it is a very important part of my life, I'm really grateful that altough I'm just a gifted amateur they accepted me. Please listen to one of my favorite Keep Smiling Jazz Vocal songs - Michelle, originally from the Beatles.

High Sierra Media Key Enabler is the most successful app in my life and it took the shortest time to write. It soon reaches ten thousand downloads and it took me about 30 minutes to write it and test it. Funny. Sometimes you really have to be in the right place at the right time - wrong place at the right time or wrong time in the right place is not enough :)

I just thougt that it would be useful for others - but after a few days thanking and praising comments started to appear under my post, feature requests came and then new pull requests and issues appeared under the github project. I was super amazed. A friend told me that I should put a paypal link at the top of my homepage - and I did. And donations started to come. Right now the amount of donations reached the price of the dev license I had to buy to raise trust in the app - Thank you!

You requested a secured app, explicitly selectable players - I was against the idea first but you convinced me, automatically starting players, bugfixes, features that couldn't be added or have to be inspected, you sent issues and pull requests implementing the requested features, you are super!

As soon as Airpods entered the market back in 2016 November I ordered one because I really needed reliable wireless earphones for running after a year with a terrible JBL. And it lived up to the expectations, I never heard any cracking sound or breaking music during running any more which is super cool. But controls were a little bit limited - bringing up siri with a double tap was totally useless for me and I never checked Airpods settings for more options because I'm lazy. How wrong was I!

It turned out that you can set up double tap functions for both sides individually.

Left double tap became play/pause, right double tap became next song - and there, I can do more with the airpods than with the earpods - besides volume control. I really miss volume control, but sound check in the Music app/iTunes helps in this problem a lot.

Anyway, I'm super satisfied with the Airpods, it's Apple's best new product in years. Even with the constant putting up/taking down of the earhoox beacuse of my monkey ears.

For a company hackathon I came up with a 3D web conferencing idea, I really wanted to feel like I'm inside of a control room and everything and everyone is around me. So I wrote a prototype with C and OpenGL that can use an arbitrary number of pre-recorded videos to demonstrate the idea. Altough I didn't win :(, you can try it here, now, in the browser. Listen to the videos carefully and use the arrow keys to navigate.

There was a time when I thought that object-orientation is the cure for all diseases and everything should be object-oriented. I already felt that C++ is way too over-engineered and Java is not low-level enough for me so I came up with my own object-oriented C version. After I finished and wrote a few programs/games in it I realized that the problem for me is not the language, it's the object-orientation. It should be used only in special cases not all the time. Functional programming is better, but keeping the code minimalistic aaand readable at the same time is the best, no matter what paradigm you use. So I stucked with C.

"SO ADDICTING AND AMAZING - Just downloaded the game and started playing and became instantly addicted. A very interesting concept! I highly recommend it especially for only .99 cents" 5/5 USA

"I've never seen anything like that before. For the price, it's totally worth it! Love the modern-retro atmosphere." 5/5 Hungary

"I thoroughly enjoyed the journey through this game and had no qualms with the simplicity of the gameplay, since the difficulty made me push harder and harder each time. Great game, great music (maybe the vocals are a bit much) and overall smooth mechanics that took me for a ride more than once." 5/5 Denmark

Surgical precision required
byOctobop
Find out who is the real genius among you: the neuro-surgeons talk the talk, but can they handle the Cortex? Just the right amount of subtle but fast-paced taps are needed to guide your precious thought through the brain. Get too excited and splat. Great competition for your friends: apparently for some people it's a breeze, and others (like me) crash into walls a lot. :-) I'm getting better though. Can't let the nerds beat me! Good music! Needs instructions: tap sides of screen to shift dot through the maze.

Beauty true beauty
byerrolgarner
There is no point using words to explain how great this game is, just play it

Instant, miminalistic, strong flow experience
byNavajonki1987greatapp
Up front: If you’re looking for a deep plot with characters and the usual game elements this will surprise you. It’s a very simple game, but is incredibly captivating. As you progress through the different levels, you must focus simply on not loosing focus. If you’re into games like Super Hexagon and appreciate minimalistic, finely crafted games, try this out.

Brawl is a game about intense action with super realistic physics. You have to lead your gang to victory in a crime-infected town.

You have to improve your fighting skills continuously, learn to block attacks, punch or kick with the correct timing. Watch your health and energy state. You can pick up fainted opponents/friends and use guns.

MacOS High Sierra Media Key Enabler for iTunes and Spotify. You can prioritize which app you would like to control or you can go with the default behaviour which controls the running app.
The app runs in the menu bar in the form of a subtle and beautiful black dot.

Apple just released High Sierra and it brought good things and annoying things : they changed the behaviour of the media controller keys, they no longer control itunes, they control the video playback in safari. This pissed off a lot of people including me, so I just created a menu bar app to proxy media key events to iTunes/Spotify while Apple fixes this. It doesn't support touchbar yet, only physical buttons.

Back in 2007, when I was still young and greedy I reverse-engineered the communication between the flash player and the very expensive flash media server and created my own version of an RTMP server. I wanted to show off like never before, so I decided that the size of the binary should stay under 64Kbytes, because we came from the eighties :) And I did it, it was never flawless or completely bug-free but it worked well. After other open-source and closed-source RTMP servers appeared, and new features were added to RTMP I couldn't keep up so I just dropped the project. Check it out.